Steel pile structure



April 30, 1940. A. w. BAILEY 4 2,198,985

STEEL PILE STRUCTURE Filed Aug. 19, 1958 2 Sheets-Sheet 1 nga. l' PK 70O I I #13 W O 75 I If I I O :P O

0 i O y ATTORNEYJ p i 30, 1940. A. w. BAILEY I 2,198,985

'STEEL PILE STRUCTURE Filed Aug. 19, 1938 2 Sheets-Sheet 2 mmmllmmn,

7a I y HP i n IN VENTOR.

- A TORNEYS Patented Apr. 30, 1940 2,19.s,es5

UNITED STATES PATENT OFFICE STEELIPILE STRUCTURE v k v Alonzo W. Bailey,Cleveland, Ohio H Application August 19, 1938,, Serial No. 225,745

" 3 Claims. (01. 61-53) This invention relates broadly to fabricatedsteel piles and more specifically to an improved pile structure whichcomprisesa composite structural steel column constructed to resist thedriving loads imposed thereon and formed for the support of a tubularsheet metal shell.

One of the objects of the invention is to provide a steel shaft framework, formed from rolled Another object of, the invention is to providea pile core which is formed with divergent vwebs having transverseapertures thereon to facilitate the anchorage of theconcretepoured-within the pile casing after thepile has been driven.

Another object of the invention is to provide a core member which isformed to accommodate the afiixation of the steel driving point and theshell in such a manner as to obviate the use of the mandrel customarilyemployed in driving I thinwalled tubular piles of this character.

Another object of the invention is to provide structural steel shaftencased with a shell adapted for the reception of a material which willform a monolithic core structure, the shaft constituting the reinforcingelement for the core.

Another object of the invention is to provide a pile core structureformed from, rolled and fabricated steel plates so fashion'edas tofacilitate the ready assembly .of. the'members with each other and withthe shell mounted thereon.

Other objects more or less ancillary of the foregoing and the mannerinwhichall the various objects are realized willappear in the followingdescription which, considered in connection with I the accompanyingdrawings, sets forth the preferred embodiment-of the invention.

As illustrated in the accompanying drawings, Figure 1 is an elevationalView partially-in section of one form of the improved pile, the drawingincluding adriving anvil mounted in opera-' tive position upon the upperend of the pile.

Figure 2 is a transverse section of the pile illustrated in Figure l,the section being taken on a plane'indicated by the line-Z-2 in Figure1; Figure 3 is a similar transverse section of the pile shown in Figure1, a' section being taken from the plane indicated'by the line 3--3 ofFigurel;

in configuration-of a V-ba'r structure or angle iron; 1 .1

Figure 7 is a plan view of the partially formed blank shown in Figure 6;1 I

,Figure .8 is a slide elevational view of the core blankillustrated in.Figure 6 after it is rolled-in configuration of aV-bar or angle iron;

' Figure 9 is a plan view thereof;

Figure 10 isan elevational view of the core after the membersthereofare. bent and welded in assembled relation;

Figure 11 is a plan View of the assembly of the core member shown inFigure 10; I V 7 Figures 12, 13, 14 .and'15 are modified forms of theshell .or pile casing;

Figure 16 is a modified form of a adapted for use with pile casings ofthe type shown, in Figure 13. In this structure the core members embodya pairof opposedangle irons having a Z-rail disposed between v thevertices of the V-sections; Y

Figure 17 is a modified form of a similar core structure to that shownin Figure 16, but formed of three angle iron sections welded togetheralong their vertices;

Figure 18 is a view in perspective of a fragmentary portion of a coresimilar to that illustrated in Figure 1, showing another form in whichtheblanksmay be pierced and illustrating the appearance of the weldedconnection between the V -bar members;

Figure 19 is a view, inperspective of apair of angle irons fabricated tofacilitate the assembly core assembly thereof with-a rod interlacedbetween thetongue and slot structurefor'med in the vertices of therails;

Figure 20 is a transverse sectional view of the rails and rodshown inFigure 19; n v T Figure 21 is a plan View of a modified form of a corestructure of the type shown in Figure 1, the core members being unitedin this case by angle iron clips welded to the inner and outer faces ofthe V-bars adjacent th'elvertices thereof;

and

Figure 22 is another modified form of the core structure of the typeshown in Figure 1, the

assembly embodying a plurality of rails having flanged end portionsassembled in cruciform relation by angle gusset plates welded to theopposed faces of the convergent ends of the rails.

Referring first to Figure l, tl e pile comprises a shell Ml whichencases a core H having a shoe or tip 12 mounted on the end thereof. Thecore members are preferably constructed from blanked plates or steelstrips [3 suitably pierced along their medial axes to provide openings Mwhich may be arranged in contiguous relation upon assembly of the coreunit. The strips 13 are also constructed with flanges l5 in theirmarginal edges to provide bearing faces for. the

support of the casing member or shell Ill. The pile core blanks may berectangular as shown in Figure 1 or sheared to form. a section havingslightly tapered side walls as illustrated in Figure 6, the blanks ofeither form being rolled or 'bent along their medial axes to form a railof suitable angular configuration to accommodate the support of the typeof shell contemplated for use therewith. The strips or rails l3 thusformed are then arranged with the vertices thereof disposed in opposedrelation so that the stock intermediate the apertures M in each membermay be welded together to form a structure of cruciform cross section.As will be seen by comparison of the drawings illustrating the flangesl5, the end portion of the core members are bent at suitable angles tofacilitate the welded connection of the shell H) thereto. The shell maybe constructed, as shown in Figure 5, from a single strip of sheet steelhaving. the marginal edges thereof over-. lapped andwelded along theseam I! or, if desired, may be formed of aplurality of strips l8 and i9welded along their marginal edges as shown in Figure 12. In theconstruction of the longer piles the core members are arranged in end toend relation and butt welded, the shell,

sections'in such structurevbeing overlapped and welded or abutted andreinforced by overhung strips or bandswelded thereto. In theconstruction of piles which are intended for use in relatively hardmaterial or subjected to heavy driving strains the core is formed with agreater number of divergent ribs or veins than provided by the structureillustrated in Figure 1. The

. construction of such a core member contem.

plates the use of a plurality of V-rails, l6 arranged with theirvertices disposed along a common axis as shown in-Figure 1'7, or asillustrated in Figure 16 the vertices of the V-rails T6 may be welded tothe Z-bar 20 along the medial axis thereof. The flanges 2! in the freeends of such core members may be bent to accommodate the support of thehexagonal shell 22 illustrated in Figure 13, or the cylindrical shell zlillustrated in Figure 15. T-

In the embodiment illustrated in Figure 19 the rails are fabricated withrectangular apertures It arranged instaggered relation in the respectivesections of the assembly so that the tongues or loops 25 defined by thestock intermediate the apertures maybe inserted. within the apertures ofthe opposed rail and 'thetwo members united by a rod 26 interlacedwithin the loops. If desired the engaged parts of the hinge structurethus formed may be welded, at intervals, to prevent displacement of therod and relative movement of the rails.

The connection between the V-rails It may be reinforced or formed in itsentirety by angle clips or rails 2'! welded to the outer faces of theveins of opposed pairs of 'V-raiIs I6 as shown'in Figure 21, and furtherreinforced with angle irons 28 welded upon the inner faces of theV-rails adjacent the vertices thereof.

Although the core sections disclosed in the foregoing contemplate theuse of V-rails or commercial structural angle irons, it is obvious thata core member having divergent veins may be constructed by enclosing thelineal edge of plates between the flanges of angle irons arranged withthe vertices of the angles disposed in parallel relation. Thus, as'shownin Figure 22 the angle irons 29 and. 30 support the plates 3! through awelding connection between the flanges of the angles and the innermarginal edges of the plates. As in the former embodiments the free endsof the divergent plates are formed with flanged edges 32 which may bebent to facilitate the support of a shell of any desired configuration.In the fabrication of the core blanks included in the foregoing formsthe apertures l4 may be of any size or configuration which willaccommodate an unrestricted flow of the concrete therethrough. Theapertures, however, should be disposed in such a manner as to preservethe strength of the material under the longitudinal load imposed thereonduring the driving operation of the pile.

The divergent veins of the piles illustrated in Figures 21 and 22 areformed with apertures in the outer edge thereof similar to the openings33 in Figure 19 to facilitate the anchorage of the concrete with thestructural iron reinforcing members or the core.

The shoe or driving tip I2 is preferably formed with a recess 34 ofsuitable proportions to accommodate the reception of the end portion ofthe core'and to facilitate a welded connection between the engagedmembers of the assembly. The shoe may, if desired, be formed with atranserse opening 35 communicating with the recess 34 in order to permitthe concrete to flow therethrough and form in certain types of strata abulbous end upon the pile. V The pile may be driven by an anvil 36having radial grooves therein formed in configuration of the transversesection of the core member and adapted to telescopically engage theupperend of the core member and shell Ill. The upper end portion 31 of theanvil may be of any configuration which will accommodate the type ofhammer or driving rig employed in setting the piles.

7 After the piles are driven and the anvil 36 removed the shell isfilled with concrete, which will flow through the apertures in the coreveins and be bonded therewith, thus forming, when hardened, a monolithicstructure reinforced by the steel core member.

It is recognized, in concrete construction work that a superior productmay be attained if the forms or concrete casing are agitated or vibratedafter the mixture has been poured, but before it is set. To date,however, such practice could not be used in pile installation work asnone of the commercially known concrete pile shell were formed toaccommodate the application of a vi- Although theforegoing descriptionis' neces prising a pair of relatively heavy structural sarily of adetailed character, in order that the invention may be completely setforth, itis to be understood that the specific terminology is notintended to be restrictive or confining, and that various rearrangementsof partsand modifications of detail may be resorted to without departingfrom the scope or spirit of the invention as herein claimed.

I claim:

1. A pile comprising a sheet metal shell, a fabricated steel core, adriving shoe on said core, and a concrete fillerin said shell, said corecomprising a plurality of vertically disposed plates having aperturestherein to facilitate the flow of concrete therethrough and a pluralityof veins formed for the support of said shell, said driving shoe havinga transverse opening extended therethrough communicating with theinterior of said shell for the reception of said concrete filler.

,2. A pile comprising a sheet metal shell, a fabricated steel core, adriving shoe on said core, and a concrete filler in said shell, saidcore cornwelded to said shoe.

angle irons adapted to resist the driving blows to which the pile issubjected during, the setting along their vertices and having aperturestherein to facilitate the flow of said concrete filler therethrough, theupper end of said shoe having a recess therein, the end of said corebeing seated in thereof, said angle irons being Welded together 1 saidrecess, said shell being welded to the longitudinal edges of the angleirons forming said core and welded to said shoe.

3. A pile embodying a shoe,'a core and a shell supported thereby, saidcore comprising a pair of rolled V-bars having apertures thereindisposed in staggered relation in the vertices of eachbar, the stockintermediate the aperture in one bar being inserted in the aperture inthe other bar, a rod Within and extending through the portions of eachbar projecting through said apertures, said shoe having a recess in theend portion thereof, said core being seated in said recess and beingALONZO W. BAILEY.

